DeFiChain Wizard Custom Transaction Library

This library can be used to send and retrieve custom (RAW) transactions from the DeFiChain.

Installation

npm i @defichainwizard/custom-transactions

Basic Usage

You can import the objects to use like this:

import {
  Transaction,
  TransactionConfig,
  CustomMessage,
} from "@defichainwizard/custom-transactions";

Create a transaction object

We will use this object in the next examples.

// The object properties are mandatory and enforced by typescript
const config: TransactionConfig = {
  client: this.client, // your whale api client
  account: this.account // your whale wallet account
  network: this.network, // the chosen network (e.g. mainnet)
  passphrase: this.passphrase // the passphrase as string array
};

// Create the transaction (it will automatically compress and encrypt the message)
const transaction = new Transaction(config);

Send a custom transaction

The message to send must be of type CustomMessage.

// Create your message to be sent
const message: CustomMessage = {
  version: "1.0",
  vaultId: "dsafasdfasdfasdfasd",
  pause: 0,
  compounding: {
    threshold: 1,
    mode: 1,
    token: "DFI",
  },
  poolpairs: {},
  rules: { keepMinRatio: 150, keepMaxRatio: 160 },
};

// Send the transaction
const txId = await transaction.send(message);

If you want to see the custom (RAW) transaction just use the following page and enter either the returned transaction ID or search for your wallet address:

https://chainz.cryptoid.info/dfi/

Send a version message to the blockchain

In order to allow the frontend to see what version is installed on the backend, the backend must send a version message to the blockchain every time it starts up.

// Create your message to be sent
const versionMessage: Version = {
  version: "1.0"
};

// Send the transaction
const txId = await transaction.send(message);

Convert the extracted message from the transaction

This is needed if you have received a transaction from the blockchain. You can easily pass the extracted string to this function and it will return the CustomMessage object (decompressed and decrypted).

The compressed and encrypted message pretty much looks like this:

WzTxU2FsdGVkX193BZ6NqtpjOSJP4GTQDYEDHSUmbbMdhQNfcV9NQCjrzoGWL2QF8mW6D+NR9sKDpqu3K/BhE4kPuvnEeA5RSJ8+kgvCL8TVxtVgGC0tHr1DTBlccpk4BSV6Iv5d0g84TAvKqD9VKfaygY39R9umrHxxGTQ1MIj8yMxpbsKigGNarch9TzJuqLoPF5zJD2+y5dDBZgCPOsVqxKTrqjQe8KDwE0ibgXhPtDstYsGNw1DeLhWK2RG+i2U2zof1zTvvQMKb/+bs3yyH1qhvpdRDQNAiDDCii5XZir75588bUIlo4OkIbMuPiCtb8vLU79dc5O5/xG76vWw0dQzLyFq6MeJk6pNhC7vCRfuas/ENr58Rq4AHCADl2DJy

// get the CustomMessage from the passed string.
const customMessage = transaction.getCustomMessage(theStringFromAbove);

Find the latest wizard transaction on the blockchain

const config: BlockScannerConfig = {
    client: await myWallet.getClient(),
    address: await myWallet.getAddress(),
    lastConfigBlock: 2076745 // the block which contained the last wizard transaction
  };

  const bs = new BlockScanner(config);

This code returns a TransactionMessage object that will look like this:

{
  "blockTime": 2076745,
  "message": "6a004d8401577a5478553...451694f5030",
  "lastConfigBlock": 2076747
}

:warning: *This function can return UNDEFINED: If there is no config found, it will return undefined.